Gas-engine



No. 624,750. Patented May 9,1899. W. H. & I. BUTTEIIWOBTHJv GAS ENGINE.

(Application filed Jan. 12, 1899.) (No Model.)

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. INVENTORJ' we .wnms PCTERE co nno'rcxumo, WASHINGTON, n c,

NlTED STATES PATENT OFFICE.

WVILLIAM H. BUTTERWORTI-I AND JOHN BUTTERWORTI-I, OF TRENTON,

- NEW JERSEY.

GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 624,750, dated May 9, 1899.

Application filed January 12, 1899. Serial No. 701,948. (No model.)

To (LZZ whmn it may concern:

Be it known that we, WILLIAM H. BUTTER- wonrrr and JOHN Burrunwonrrr, citizens of the United States, residing at Trenton, in the county of Mercer and State of New Jersey,

This invention relates to gas-engines and other similar engines; and it consistsin the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a longitudinal section through the cylinder and the Waterjacket. Fig. 2 is an end View of the cylinder and jacket. Figs. 3 and 4 are plan views of the two covers.

A is the engine-cylinder, and B is the water-jacket which surrounds the cylinder and extends to its rear end.

C is a plate at the rear end of the waterjacket and cylinder, provided with an opening a, leading into the cylinder, and a series of holes 0, leading into the water-jacket. The outside surface of the plate 0 is flat and is machined or finished in a single operation, forming a level surface extending around the opening 0 and around the holes 0. p The holes a permit mud and scale to be removed from the water-jacket, and as many holes as desired can be formed. The opening 0 permits the removal of deposits of carbon from the combustion-chamber of the cylinder.

D is a cover for the opening a, and E is a cover for the mud-holes c. The covers are secured to the plate 0 by any approved fastenin g devices, such asstud-bolts. The cover E is preferably annular, and either cover can be removed and replaced Without disturbing the other cover. The cover E has a single bearing-surface e, which closes all the holes 0' of the water-jacket.

WVhat we claim is 1. The combination, with a cylinder, awater-jacket, and a plate connecting the rear ends of the said parts, said plate having a single bearing-surface and separate openings leading into the cylinder and jacket respectively of separate covers bearing against the said surface and closing the said openings, substantially as set forth.

2. The combination, with a cylinder having an opening at its rear end, and a waterjacket encircling the cylinder and having holes at its rearend; of a cover closing the cylinder, and a separate cover having a single bearing-surface which closes all the said jacket-holes, substantially as set forth.

In testimony whereof we affix our signa tures in presence of two witnesses.

WILLIAM H. BUTTERWORTH. JOHN BUTTERWORTH. WVitnesses:

WALTER K. BOWNE, GEO. F. S HEELE. 

